如图,点A,B,E在同一条直线上,不能判定AD
BC的条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
A.∠A=∠CBE | B.∠C+∠D=180° |
C.∠C=∠CBE | D.∠A+∠ABC=180° |
更新时间:2021-08-16 16:11:51
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【推荐1】如图,
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A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】如图,下列条件中:①∠1=∠3;②∠4=∠5;③∠2+∠4=180°;④∠2=∠6,其中不能判断直线
//
的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/26/76b15263-9155-4914-ae1a-8121f89146e4.png?resizew=210)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/26/76b15263-9155-4914-ae1a-8121f89146e4.png?resizew=210)
A.①②③ | B.③④ | C.③ | D.④ |
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【推荐1】如图,下列推理正确的是( )
![](https://img.xkw.com/dksih/QBM/2019/2/18/2143473526521856/2144301543227393/STEM/b30873c9cbf04f2bbb5a60382298977f.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2019/2/18/2143473526521856/2144301543227393/STEM/b30873c9cbf04f2bbb5a60382298977f.png?resizew=129)
A.∵∠1=∠2,∴AD∥BC | B.∵∠3=∠4,∴AB∥CD |
C.∵∠3=∠5,∴AB∥DC | D.∵∠3=∠5,∴AD∥BC |
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【推荐2】下列说法正确的是( )
A.同位角相等 | B.相等的角是对顶角 |
C.内错角相等,两直线平行 | D.互补的两个角一定有一个锐角 |
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【推荐1】如图,下列条件:①∠1=∠2;②∠3=∠4;③∠3+∠4=180°;④∠1+∠2=180°;⑤∠1+∠2=90°; ⑥∠3+∠4=90°; ⑦∠1=∠4,能判断直线l1∥l2的条件有( )
![](https://img.xkw.com/dksih/QBM/2016/5/3/1574204063408128/1574204068773888/STEM/931c3b33348b4c7ab7ab2d6dfc2d60dd.png)
![](https://img.xkw.com/dksih/QBM/2016/5/3/1574204063408128/1574204068773888/STEM/931c3b33348b4c7ab7ab2d6dfc2d60dd.png)
A.②④ | B.①②⑦ | C.③④ | D.②③⑥ |
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【推荐2】如图,直线AB、CD被直线EF所截,∠1=50°,下列说法错误的是( )
![](https://img.xkw.com/dksih/QBM/2016/4/28/1574198729998336/1574198735568896/STEM/eb240eb053ba49a885e438fdbd7538ea.png)
![](https://img.xkw.com/dksih/QBM/2016/4/28/1574198729998336/1574198735568896/STEM/eb240eb053ba49a885e438fdbd7538ea.png)
A.如果∠5=50°,那么AB∥CD | B.如果∠4=130°,那么AB∥CD |
C.如果∠3=130°,那么AB∥CD | D.如果∠2=50°,那么AB∥CD |
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